The Harlem Hamfats recorded for Decca from 1936-40 or so, making several hundred sides under their own name as well as backing up singers and other entertainers.  Consisting of the New Orleans trumpeter Herb Morand, Chicago clarinetist Odell Rand, pianist Horace Malcolm, brothers Charlie and Joe McCoy on guitar and vocals (and Charlie on mandolin), John Lindsay on bass and Pearlis Williams on drums, the group combined swing, dixieland and blues in an energetic way that kept their records on jukeboxes for a decade after they stopped recording.